Ninety seven percent of climate scientists agree that a wavy jet stream is caused by global warming and disappearing Arctic ice.
CO2 is changing the jet stream in ways that will create more Harveys – ThinkProgress
This is not to be confused with 40 years ago, when 97% of climate scientists agreed that a wavy jet stream is caused by global cooling, and increasing Arctic ice.
25 May 1983, Page 29 – Stevens Point Journal at Newspapers.com
24 Sep 1974, 16 – The Guardian at Newspapers.com
Also important to remember is that warmth in Alaska is proof of both global warming, and global cooling – depending on which answer politicians are currently willing to pay for.